C++ reducers under hadoop-pipes are not started when there are no key-value
pairs to be reduced
-----------------------------------------------------------------------------------------------
Key: HADOOP-1335
URL: https://issues.apache.org/jira/browse/HADOOP-1335
Project: Hadoop
Issue Type: Bug
Components: mapred
Affects Versions: 0.12.3
Reporter: Christian Kunz
Probably originally thought as a feature, Hadoop-Pipes does not start a C++
reducer application when there are no key-values to be processed.
Unfortunately, this does not allow to have certain common tasks performed by
every reducer independent of key-value pairs. This is a requirement for our
applications.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
